발간논문

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The TiC-Mo₂C-Ni hard metals were prepared by infiltrating Ni infiltrant into porous skeletons of carbides, and microstructures and mechanical properties of the specimens were compared to those of conventionally sintered specimens. The density of residual porosity was decreased and formation of large grains could be inhibited by utilizing the infiltration technique. The infiltrated specimens showed higher transverse rupture strength than conventionally sintered specimens. The maximum value of transverse rupture strength was obtained when mole fractions of Ni and Mo₂C were the same.

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Perpendicular magnetic anisotropy has been studied for (M_(100-x)R_x) (M = Fe, Co, R =Pr, Nd, Sm, Gd, Dy, Er) amorphous alloy films. It is found that the perpendicular magnetic anisotropy of amorphous films consists of two terms which are proportional to the content and to the square of content of rare earths. Both of these terms can be explained by a large one ion anisotropy of rare earths.

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